Kieanwatana, K. and Yongjian, P. (2022) “The Opinions of Foreign Tourist Towards Development for Bangkok to be the Tourism Center of Greater Mekong Sub-Region Railways”, Academic Journal of Thailand National Sports University. Chonburi, Thailand, 6(3), pp. 135–144. available at: https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/256401 (accessed: 18 September 2026).